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We localized higher brain functions on the human cerebral cortex by use of various non-invasive techniques. EEG tomography was first applied to map the cortical areas with beta-activation during psychological tasks including listening to speech and music, calculation, animal name listing, and figure-drawing on normal volunteers and patients. Single Photon Emission Tomography was used to confirm the...
Two types of mRNAs for neurofibromin isoforms, which are produced by Von Recklinghausen neurofibromatosis (NF1) gene, have so far been identified. In the present study, we analyzed the differential expression of the two NF1 mRNAs in 16 cases of human astrocytic tumors and in surrounding normal tissues by the RNA-polymerase chain reaction. Astrocytic tumors predominantly expressed type II NF1 mRNA,...
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